Home / 12,589,342,573.14-17,374,816,194.53-7,165,196,984.21

Finding the Fourth Proportional to 12,589,342,573.14, 17,374,816,194.53 and 7,165,196,984.21

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Solution

The fourth proportional to 12,589,342,573.14, 17,374,816,194.53 and 7,165,196,984.21 is: 9,888,838,902.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,589,342,573.14 : 17,374,816,194.53 = 7,165,196,984.21 : x
  2. Step 2: Convert to fraction form
    12,589,342,573.14/17,374,816,194.53 = 7,165,196,984.21/x
  3. Step 3: Cross multiply
    12,589,342,573.14x = 17,374,816,194.53 × 7,165,196,984.21
  4. Step 4: Simplify right side
    12,589,342,573.14x = 124,493,980,598,126,739,456
  5. Step 5: Solve for x
    x = 124,493,980,598,126,739,456/12,589,342,573.14
  6. Step 6: Final answer
    x = 9,888,838,902.81

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.